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SpinalHDL AXI crossbar with 2 SRAM's - Pastebin.com
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- package vexriscv.demo
- import spinal.core._
- import spinal.lib._
- import spinal.lib.bus.amba3.apb._
- import spinal.lib.bus.amba4.axi._
- import spinal.lib.misc.HexTools
- import scala.collection.mutable.ArrayBuffer
- import scala.collection.Seq
- class TinyClunx(
- onChipRamSize : BigInt
- ) extends Component{
- val axiConfig = Axi4Config(
- addressWidth = 17,
- dataWidth = 64,
- idWidth = 3,
- useRegion = false,
- useLock = false,
- useQos = false,
- useResp = false,
- useProt=false,
- useStrb=false
- )
- val debug = true
- val io = new Bundle{
- //Clocks / reset
- val axiReset = in Bool()
- val axiClk = in Bool()
- val axiM1 = slave(Axi4(axiConfig))
- val axiM2 = slave(Axi4(axiConfig))
- //val axiM1 = slave(Axi4Shared(axiConfig))
- //val axiM2 = slave(Axi4Shared(axiConfig))
- }
- val axiClockDomain = ClockDomain(
- clock = io.axiClk,
- reset = io.axiReset
- )
- val axi1 = new ClockingArea(axiClockDomain) {
- val ram1 = Axi4SharedOnChipRam(
- dataWidth = 64,
- byteCount = onChipRamSize,
- idWidth = axiConfig.idWidth+1
- )
- val ram2 = Axi4SharedOnChipRam(
- dataWidth = 64,
- byteCount = onChipRamSize,
- idWidth = axiConfig.idWidth+1
- )
- val axiCrossbar = Axi4CrossbarFactory()
- axiCrossbar.addSlaves(
- ram1.io.axi -> (0x00000000L, onChipRamSize),
- ram2.io.axi -> (0x00010000L, onChipRamSize)
- )
- axiCrossbar.addConnections(
- io.axiM2 -> List(ram1.io.axi, ram2.io.axi),
- io.axiM1 -> List(ram1.io.axi, ram2.io.axi)
- )
- axiCrossbar.build()
- }
- }
- object TinyClunx{
- def main(args: Array[String]) {
- val config = SpinalConfig()
- config.generateVerilog({
- val toplevel = new TinyClunx(onChipRamSize = 8 kB)
- toplevel
- })
- }
- }
- // With memory init
- object TinyCClunxWithMemoryInit{
- def main(args: Array[String]) {
- val config = SpinalConfig()
- config.generateVerilog({
- val toplevel = new TinyClunx(onChipRamSize = 8 kB)
- HexTools.initRam(toplevel.axi1.ram1.ram, "src/main/ressource/hex/muraxDemo.hex", 0x80000000l)
- toplevel
- })
- }
- }
Tags:
spinalhdl
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